@[zyz1001](/space/show?uid=112190) 我怎么知道
by AntiO2 @ 2019-03-12 19:47:44
@[AntiO2](/space/show?uid=40513) %%%，lzndalao又来吊打小蒟蒻了，QAQ
by zyz1001 @ 2019-03-12 19:50:47
~~**我怎么知道**~~
```
#include<bits/stdc++.h>
using namespace std;
int m,n,a[30005],ans,k=1;
int main(){
cin>>m>>n;
for(int i=1;i<=n;i++)
cin>>a[i];
sort(a+1,a+n+1);
/* int i=1,j=n,t=0;
while(i<=j){
if(a[i]+a[j]<=m){
ans++; i++; j--;
}
else ans++,j--;
}*/
for(int i=n;i>=k;i--){
ans++;
if(a[i]+a[k]<=m) k++;
}
cout<<ans<<endl;
return 0;
}
```
by wym1111 @ 2019-03-12 19:58:38